DOPA Decarboxylase Antibodies
DOPA decarboxylase (DDC) is a key enzyme in dopamine synthesis and has recently gained attention as a fluid biomarker for Lewy body disorders. Cerebrospinal fluid (CSF) DDC levels are elevated in Parkinson’s disease (PD) and dementia with Lewy bodies, and this increase is already detectable in prodromal and de novo PD, where CSF, but not plasma, DDC is elevated, highlighting its potential as an early‑stage biomarker 1. In contrast, plasma DDC elevations are largely driven by dopaminergic treatment, not disease pathology, indicating that peripheral DDC measurements may be confounded by medication effects2.
The ADx411 and ADx412 monoclonal antibodies against DDC allow the development of immunoassays for quantifying this biomarker in CSF.
Product number 90583
Product number 90584